耳洞 Traditional form: 耳洞 Pinyin (reading): ěrdòng Definitions: ear piercing hole; earring hole Characters: 耳 - ear; to hear, to hear of; handle 洞 - cave, grotto, hole, ravine Traditional characters: 耳 - ear; to hear, to hear of; handle 洞 - cave, grotto, hole, ravine